Goodwill and Identified Intangible Assets - Estimated Future Amortization Expense of Purchased Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 27, 2014	Dec. 31, 2013
Acquired Finite-Lived Intangible Assets [Line Items]
2014 (remaining 6 months)	$ 7,653
2015	6,502
2016	4,097
2017	0
2018	0
Total future amortization expense	18,252	31,119
Product cost of revenue [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
2014 (remaining 6 months)	4,546
2015	719
2016	0
2017	0
2018	0
Total future amortization expense	5,265
Operating Expenses [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
2014 (remaining 6 months)	3,107
2015	5,783
2016	4,097
2017	0
2018	0
Total future amortization expense	$ 12,987